The prototype controller For the PS3 that was highly controversial until its release in 2006 : r/gaming
Military PS3s and PS3 prototypes: more exotic consoles you can find on eBay - Wololo.net
Prototype (PS3) review | PlayStation 3
Here's What Different Prototype Controller Designs Look Like
PlayStation 3 Boomerang Controller - The original PlayStation 3 Prototype shown off at E3 2005 had some major differences than the retail release. | Facebook
Military PS3s and PS3 prototypes: more exotic consoles you can find on eBay - Wololo.net
Model home has fake PS3 E3 prototype. : r/gaming
PlayStation 3 prototype with “Boomerang” controller : r/gaming
PS3 [PROTOTYPE] Video Game (2009, Sony PlayStation 3) Complete | eBay